Security Protection and Testing System for Cyber-Physical Based Smart Power Grid

With the development of the information and communication technology, power grid has developed from a traditional power equipment network into a heterogeneous cyber-physical system. The framework and security requirements of grid cyber-physical system are presented. Security risks of four layers are analyzed including perception layer, network layer, platform layer and application layer. Cyber-attacks are classified by attack form and attack target. Information security protection system and security testing system are proposed, and key technics are analyzed.